Players assume the role of young hero Lock, an Archineer (part architect, part engineer) who uses his skills to build new structures around the sacred Source Artifacts, with the ultimate goal of protecting them from infiltrators. Players can utilise different materials such as stone, metal, or wood to create and design defensive towers in the battle field. There are also quirky weapons such as quicksand traps and glue cannons that the player can use to attack or slow down enemies.